Describe the distinctive aspects of Mayan, Aztec and Incan agriculture. Identify lessons?good or bad?that contemporary agricultural systems might take from

Please write 250-300 words, on the following: 

Topic: Describe the distinctive aspects of Mayan, Aztec and Incan agriculture. Identify lessons—good or bad—that contemporary agricultural systems might take from these different forms of agriculture. You may want to consider what climate might benefit from any of these techniques or identify a crop that might be suitable for these ancient techniques.